Answer:
2+2u
Step-by-step explanation:
just distribute the equation
[tex]=2+2u[/tex]
[tex]2(1+u)\\\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac\\a=2,\:b=1,\:c=u\\=2\cdot \:1+2u\\\mathrm{Multiply\:the\:numbers:}\:2\cdot \:1=2\\=2+2u[/tex]